dfsi.dk DNS records

🖥️ Nameservers2 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 57ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
116.203.239.88	3600s	web02.sh.systemina.dk	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records1 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dfsi-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 52.101.68.25 52.101.68.5 52.101.73.1 52.101.73.30	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 207ms

TXT Record
MS=ms24580108
v=spf1 mx a include:spf.protection.outlook.com include:uxmail.io include:spf.systemina.dk -all

✉️ SPF

Policy	Record (dfsi.dk)
-all (hard fail)	v=spf1 mx a include:spf.protection.outlook.com include:uxmail.io include:spf.systemina.dk -all

📨 DMARC

Policy	Record (_dmarc.dfsi.dk)
p=quarantine	v=DMARC1;p=quarantine;sp=quarantine;pct=100;ri=86400;aspf=r;fo=1

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC121ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA46ms

Field	Value
Serial	2026081405
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

57ms

MX

61ms

AAAA

42ms

TXT

207ms

CAA

81ms

HTTPS

69ms

TLSA

1093ms

SOA

46ms

MTA-STS

92ms

DNSSEC

121ms

SRV

133ms

Total

6416ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-15 04:33:11	6416ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 11:22:04	9205ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 18:20:40	7360ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 18:59:24	1755ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 13:17:27	1349ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 16:43:12	2425ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 18:21:41	727ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 02:35:16	940ms	2 NS 1 A 1 MX	🔒 Secure	View